Frank spent the next 40 years training with Japanese masters such as Masatoshi Nakayama, Hidetaka Nishiyama, Teruyuki Okazaki, and Yutaka Yaguchi.

In 1978, Woon-A-Tai first gained international prominence at the Japan Karate Association's Pan American Championships in Montreal, Quebec, Canada, where he was named Kata Champion.

In 2011, Woon-A-Tai received the official title to an acre of land from Dr. Bharrat Jagdeo, President of Guyana, to build a 12,000-square-foot GKC International Budokan Dojo.

His five-year plan is to develop a massive four-storied complex that will house a martial arts arena, 48 student dormitories, 24 apartments for coaches and officials, and a restaurant on the top floor overlooking the Atlantic Ocean.

[2] In 2011, he founded the IKD - International Karate Daigaku (University), with a membership of 80 regions in 56 countries in ten whole years.